1961

Names of 1961

• Cardinal: 1961 can be written as One thousand, nine hundred sixty-one.

Scientific notation

• Scientific notation: 1.961 × 10³

Factors of 1961

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 90

Divisors of 1961

• Number of divisors d(n): 4
• Complete list of divisors:
  1 37 53 1961
• Sum of all divisors σ(n): 2052
• Sum of proper divisors (its aliquot sum) s(n): 91
• 1961 is a deficient number, because the sum of its proper divisors (91) is less than itself. Its deficiency is 1870

Bases of 1961

• Binary: 11110101001₂
• Hexadecimal: 0x7A9
• Base-36: 1IH

Squares and roots of 1961

• 1961 squared (1961²) is 3845521
• 1961 cubed (1961³) is 7541066681
• The square root of 1961 is 44.2831796509
• The cube root of 1961 is 12.5167774713

Scales and comparisons

• 1,961 seconds is equal to 32 minutes, 41 seconds.
• To count from 1 to 1,961 would take you about thirty-two minutes.

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 1961 cubic inches would be around 1 feet tall.

Recreational maths with 1961

• 1961 backwards is 1691
• The number of decimal digits it has is: 4
• The sum of 1961's digits is 17
• More coming soon!